Construction materials are the substances used in the building and infrastructure industry to create structures. Common materials include concrete, steel, wood, and brick. Each material has unique properties that make it suitable for different applications, such as strength, durability, and insulation. These materials can be categorized into two main types: natural materials, like stone and timber, and synthetic materials, such as plastic and composite materials. The choice of construction materials affects not only the structural integrity of a building but also its energy efficiency and environmental impact.